standover clearance?
04-02-07 | 07:47 PM
#27
Senior Member
Joined: Feb 2007
Posts: 862
Likes: 0
From: Arizona
Bikes: Swift folder, single speed
Originally Posted by k3nho
who bails off a road bike by trying to straddle the top tube and land flat footed??
while this is good advice for a mtb, i don't think it is good advice for a road bike with classic geometry. this bad rule of thumb leads many to buy bikes that are waaay too small for them.
while this is good advice for a mtb, i don't think it is good advice for a road bike with classic geometry. this bad rule of thumb leads many to buy bikes that are waaay too small for them.
I agree with both.
04-02-07 | 07:50 PM
#28
Senior Member
Joined: Feb 2007
Posts: 862
Likes: 0
From: Arizona
Bikes: Swift folder, single speed
It's tough being a monkey. My girlfriend is 6" shorter than me and we can wear the same pants (if I suck in
_____________
Same monkey-problem here - 6 feet tall, 29" pants inseam, and my upper bod is the size of someone 6'6". I like a 56 cm frame.
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Same monkey-problem here - 6 feet tall, 29" pants inseam, and my upper bod is the size of someone 6'6". I like a 56 cm frame.
04-03-07 | 12:23 AM
#29
Dismount Run Remount etc.
Joined: Apr 2005
Posts: 2,235
Likes: 0
From: Some Latitude and Some Longitude
Bikes: A couple customs and some beaters.
Pubic bone height is the measurement you should use...not your ball sack drop.
More info from the bearers of all things logical, Grant Peterson and co:
How to measure your Pubic Bone Height (PBH)
1. Stand in bare feet on a hard floor.
2. Put your feet 10 inches apart.
3. Hook the edge of a metal metric tape over a thin edge -- two rulers, or a thin hardcover book.
4. Pull the tape up hard against your pubic bone. We tell folks, "Try to lift yourself off the ground."
5. Have a friend take reading as you do this.
PBH Man
Do this twice, thrice, or a hundred times. As long as the tape is straight and the guy reading the number knows how to read a tape, you should record the highest of all the readings you get. Why not the average? Because you'll never pull past the bone, so you can't get a reading that's too high.
It's really good to know your PBH, because from it you can determine saddle height (SH). Here's the formula:
PBH - 10 to 10.5cm = SH*
*from center of the crank to the top of the saddle.
NOTE: if you're among the folks who are more comfortable with multiplication than you are with subtraction, here's a formula the formula you've been looking for your whole life long:
PBH x 0.881= SH
Are there ever any exceptions to the formula?
Maybe, but they're rare.
Now and then a tiny-footed woman will do better using a SH that's 11cm less than her PBH.
And,*if you ride 180mm cranks,* you might factor that into it, too, and go with PBH minus 11 or 11.5.
If you pedal in elevator shoes, you'll need the saddle higher, so a PBH minus 8 might be better.
For the rest of us wearing shoes with normal thickness soles, PBH minus 10 to 10.5 is a good saddle height.
Over and out!
More info from the bearers of all things logical, Grant Peterson and co:
How to measure your Pubic Bone Height (PBH)
1. Stand in bare feet on a hard floor.
2. Put your feet 10 inches apart.
3. Hook the edge of a metal metric tape over a thin edge -- two rulers, or a thin hardcover book.
4. Pull the tape up hard against your pubic bone. We tell folks, "Try to lift yourself off the ground."
5. Have a friend take reading as you do this.
PBH Man
Do this twice, thrice, or a hundred times. As long as the tape is straight and the guy reading the number knows how to read a tape, you should record the highest of all the readings you get. Why not the average? Because you'll never pull past the bone, so you can't get a reading that's too high.
It's really good to know your PBH, because from it you can determine saddle height (SH). Here's the formula:
PBH - 10 to 10.5cm = SH*
*from center of the crank to the top of the saddle.
NOTE: if you're among the folks who are more comfortable with multiplication than you are with subtraction, here's a formula the formula you've been looking for your whole life long:
PBH x 0.881= SH
Are there ever any exceptions to the formula?
Maybe, but they're rare.
Now and then a tiny-footed woman will do better using a SH that's 11cm less than her PBH.
And,*if you ride 180mm cranks,* you might factor that into it, too, and go with PBH minus 11 or 11.5.
If you pedal in elevator shoes, you'll need the saddle higher, so a PBH minus 8 might be better.
For the rest of us wearing shoes with normal thickness soles, PBH minus 10 to 10.5 is a good saddle height.
Over and out!
